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KeyStudio 49i User Guide
To change the Transposition using the Transpose “+” and “-“ Keys in Edit mode:
1. Press the Edit Mode button.
2. Press the black key above D4 (D#4), representing “Transpose +,” to shift the keyboard up by one semitone.
3. Press the black key above C3 (C#3), representing “Transpose -,” to shift the keyboard down by one semitone.
4. Press C5 representing “ENTER,” or press the Edit Mode button to exit Edit mode.
3. Channel
MIDI data from the keyboard can be sent on any of 16 MIDI channels. The KeyStudio default is to transmit MIDI data on
channel 1. However, certain MIDI performance or recording scenarios may require the keyboard to send data on a different
channel. You can change the channel on which data is sent using the following method:
1. Press the Edit Mode button.
2. Press one of the 16 channel keys from D1 to E3, whichever one represents the channel you need. KeyStudio will exit
Edit mode as soon as a channel key has been pressed.
For example, if a device specifies that you need to send data on channel 10, press the Edit Mode button, and then F2 to
select channel 10. This channel is usually dedicated to drum sounds when working with GM compatible synthesizers and GM
compatible sound modules (such as the M-Audio GM Module software).
The Octave “<” and “>” buttons can also be configured to control the MIDI transmission channel setting by pressing the Edit
Mode button and then C#2. This will allow the Octave “<” and “>” buttons to increment or decrement through the channels.
When channel 16 is reached and “>” is pressed, channel 1 will be selected. If the Octave “<” and “>” buttons are assigned
to vary the channel, the lights above the buttons will not change, since it is not possible to have a channel with a negative
value. Pressing both the “<” and “>” buttons together will recall the default setting, channel 1.
4. Program Change
Program changes are used to change the MIDI instrument or synthesizer sounds you are controlling with your KeyStudio.
Program change messages can be beneficial when using the KeyStudio keyboard to control MIDI sound modules or
synthesizers like M-Audio GM Module. For an example, let’s change the instrument on M-Audio GM Module to a cello sound.
To do this we need to send a program change of 42 to the GM Module software, which will select a cello sound from the
General MIDI Instruments standard list (see Appendix A).
Important: Be sure the M-Audio GM Module software is open on your computer, and your KeyStudio keyboard is
properly connected to your computer before attempting to send a program change.
There are two methods to send the program change:
A) Increment/Decrement Program Change:
1. Press the Edit Mode button.
2. Press the black key above F1 (F#1).
Now the Octave “<” and “>” buttons can be used to change the program.
NOTE: When the GM Module software is launched in standalone mode, it sends a message to the KeyStudio keyboard
which automatically programs the Octave buttons to send program changes.